Stop-motion.



7 A. G. SHIDEBD.

STOP MOTION.

APPLICATION FILED 001228, 1907.

PATENTED APR. 28. 1908.

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No. 885,875. PATENTBD APR. 2a, 190

A. G. SHIDEBD. STOP MOTION.

APPLIOATION'IILED 001223. 1907.

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WITNESSES;

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ABRAHAM G. SHIDEED, OF LAWRENCE, MASSACHUSETTS.

STOP-MOTION.

Specification of Letters Patent.

Patented April 28, 1908.

Application filed October 23, 1907. Serial No. 398,798.

To all whom it may concern:

Be it known that I, ABRAHAM G. SHIDEED, a citizen of the Empire of Turkey, residing at Lawrence, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Stop-Motions, of which the following is a specification.

My invention relates to drawing boxes for woolen and worsted roving particularly for worsted.

It is a stop motion for such drawing boxes and its purpose is to stop the machine whenever a break occurs in the sliver ends or in the roving.

- In the drawings, Figure 1 shows in perspective a portion of the machine with certain parts broken away to show the constructlon. Fig. 2 is a front view and Fig.

3 is a side view of the stopmotion tri ger action. Fig. 4 is adetail of the spin le and bobbin in action. Fig. 5 is a detail showing ..the action of a broken end upon the .cup.

Fig. 6 is a detail of the cup and finger. Fig. 7 is an elevation of the cup and Fig. 8 is a section of the cup and the end of the spindle bracket on line X Y of Fig. 9. Fig. 9 is a perspective view of the spindle bracket.

The purpose of such machines is to twist the ends A of the sliver as they are delivered from the drawing rolls G and H to form the roving K and to wind the roving upon the bobbins B. The spindles C, C are actuated by pulleys E, E. Each spindle C carries a flyer F provided with eyes 10 and 11 and each is in the form-of a tube at its upper end through the sides of which is an opening 12.

The bobbins B, B are loosely mounted upon the spindles C, C, and rest upon friction washers L, which rest upon plates M fas' tened to lifter plate N. They could revolve freely upon spindles C, C were it not for the friction of washers L. H

Each sliver end A is delivered by the rolls G and H and passes through the top of the spindle C out through the opening 12and through one of the eyes 10. From thence it is wound around the arm of the flyer F and passes through the eye 11 onto the bobbin B. The bobbin B is rotated by the drag of the roving K coming from the arm of fiyer F, but at a slower speed than the flyer on account of the drag of washer L, with the result that a twist is imparted to the roving and it is also wound upon bobbin B. It is distributed evenly upon bobbin B by the rise and fall of lifter plate N. This'is the washer drag system.

The bottom of each spindle C rests in a suitable opening in a pulley E, each of which is actuated. through belts and pulleys of well known construction by fast pulley O on shaft 40.

In the well known type of machine to which this device is a plicable, the spindle is supported at the to by a spindle bracket 30 into which sets the hearing cup 50 which can be passed over the top of the spindle C and pushed into the opening in the bracket and dropped into place therein, thus detachably holding the spindle in place.

The cup 50 consists of a tube 51 of such size as to form on its inside a bearing for the spindle C andon its outside to pass through a slot 31 on the u per outer end of spindle bracket 30. up 50 at its top 52 is flanged to set in the enlarged groove at the top of slot 31 forming a socket 32 which is of such size as to receive it closely. Socket 32 is of such size as to prevent cup 50 from getting out unless it is lifted. The top of the cup 50 projects somewhat above and the bottom somewhat below the bracket 30.

To put spindle C in place, its lower end is pushed through bobbin B, washer L, plate M,

and lifter plate N, into its opening in pulley E. Cup 50 is placed on top of spindle C and is raised so as to pass its lower portion 51 through slot 31 until the upper flange 52 can be and is dropped into the socket 32 where it is held unless. lifted in some way.

' Each spindle bracket is provided with a rocker arm 60. Each rocker arm is pivoted at 61 to block 62 which is fastened on the top of the lower part of the bracket The pivot shaft 70 which rests in bearings V 71, 71 suitably attached to the frame of the machine behind the spindles, carries a plurality of contact arms 72, 72 provided with upwardly projecting forked ends in which rest the straight ends 64 of the rocker arms 60. There is one contact arm for each rocker arm. A trigger arm 73 is also carried at a suitable point by pivot shaft 7 0. To counterbalance the weight of arms 72 and 73, I provide a counterweight arm 7 4 upon which is the counterweight 75 detachably attached thereto by means of a set screw.

In this type of machine, the belt is thrown from the fast pulley O to the loose pulley P by a shipper connection operated by a handle carried by a shipper shaft 81. I fix a shipper arm 82 to the shipper shaft 81 and pivot to the shipper arm 82, a shipper rod 83 which is supported by and slides in bearings 84 and 85 fixed to any convenient art of the machine. A collar 86 of greater ength than the throw of the shipper rod 83 is adjustably attached thereto by means of a set screw. Around the shipper rod 83 resting at one end against the bearing 84 and at the other end against collar 86 is a spiral spring 87 When the belt is brought on the fast pulley O by handle SOto start the machine, the spiral spring 87 is compressed and collar 86 is brought into such position that trigger arm 73 will be brought up by the counterweight 75 in front of collar 86 thus retaining it in that position. It will be seen that if tri 'ger arm 73 is depressed out of the way of col ar 86, spiral s ring 87 will expand carrying with it the co lar 86, shipper rod 83 and ship er arm 82 and will throw the belt from the ast pulley 0 onto the loose pulley P thus stopping the machine.

' The operation is as follows :If a break occurs in the sliver end A or in the roving at any point, the drag of the bobbin will wind up the surplus roving and will then cease. In such case, the sliver end A will continue to be delivered by the delivery rollsG and H and will fall over and wind up, as shown in F ig. 5, around the top of the spindle C. After a few revolutions the winding end will force the cup upward, as see Fig. 5, in con- ,tact with cup finger 63 on rocker arm 60.

This will depress the straight end 64v of rocker arm 60 which will force down contact arm 72 and trigger arm 73 from in front of collar 86, thus releasing the s iral spring 87 and stopping the machine. fi hen the ends are pieced, the action of throwing the belt onto the fast pulley 0 will push back collar 86, compressing spring 87, until it reaches such a point that trigger arm 73 will rise in front thereof by the action of counterweight 75, thus setting the device for the next break.

\Vhat I claim as my invention and to cover by Letters-Patent is:

1. In a stop motion for drawing boxes, a spindle, a bearing cup at the top thereof, a spindle bracket provided with a socket for the bearing cup, a rocker arm pivoted to the spindle bracket and bent at one end over the bearing cup and straight at the other end, a pivot shaft, a contact arm carried thereby which engages the straight end of the rocker arm, a counterweight carried by the pivot shaft, and a trigger arm carried by the pivot shaft, combined with a shipper arm, a shipper rod pivoted thereto and slidably supported in fixed bearings, a collar fixed to the shipper rod, and a spiral spring between said collar and one of the shipper .rod bearings.

2. In a stop motion for drawing boxes, a plurality of spindles, bearing cups at the top thereof, spindle brackets each provided with a socket for a bearing cup, rocker arms straight at one end and each pivoted to a spindle bracket and bent at the other end over a bearing cup, a pivot shaft, a plurality of contact arms carried thereby each of whieh engages the straight end of a rocker arm, a trigger arm carried by the pivot shaft, and means whereby the belt will be thrown from the fast to the loose pulley when released by the trigger arm.

3. In a stop motion for drawing boxes, a plurality of spindles, bearing cups at the to thereof, spindle brackets each provided wit 1 a socket for a bearing cup, rocker arms straight at one end and each pivoted to a spindle bracket and bent at the other end over a bearing cup, a pivot shaft, a plurality of contact arms carried thereby each of which engages the straight end of a rocker arm, a trigger arm carried by the pivot shaft, a spring actuated shipper rod, and a collar carried thereby at such a point as to engage the trigger arm.

In testimony whereof I aflix my signature in presence of two witnesses.

HARRY R. LAWRENCE, THos. A. I\IIAVEY.

desire 

